DE967497C - Hydraulic control for steam or gas turbines with two or more servo motors - Google Patents

Hydraulic control for steam or gas turbines with two or more servo motors

Info

Publication number
DE967497C
DE967497C DEL14801A DEL0014801A DE967497C DE 967497 C DE967497 C DE 967497C DE L14801 A DEL14801 A DE L14801A DE L0014801 A DEL0014801 A DE L0014801A DE 967497 C DE967497 C DE 967497C
Authority
DE
Germany
Prior art keywords
steam
hydraulic control
gas turbines
servo motors
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEL14801A
Other languages
German (de)
Inventor
Hans Reuschke
Arthur Rosch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL14801A priority Critical patent/DE967497C/en
Application granted granted Critical
Publication of DE967497C publication Critical patent/DE967497C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic

Description

Die Erfindung betrifft eine hydraulische Steuerung für Dampf- oder Gasturbinen mit mehreren Steuerwellen zur Betätigung der Düsengruppenventile, deren jede von einem Servomotor angetrieben wird, der einen Empfängerkolben und eine auf diesen wirkende Schraubenfeder aufweist. Da die Federn nicht einander genau gleich hergestellt werden können, sondern unvermeidlich verschieden hart ausfallen, also voneinander verschiedene Weg-Kraft-Linien haben, so müssen, damit die Servomotoren, wie gewünscht, sich einander gleich bewegen, diese Unterschiede der Härte ausgeglichen werden.The invention relates to a hydraulic control for steam or gas turbines with several Control shafts for actuating the nozzle group valves, each of which is driven by a servo motor which has a receiver piston and a helical spring acting on it. Since the Feathers cannot be made exactly alike, but inevitably different fail hard, i.e. have different displacement-force lines from each other, so that the servomotors, as desired, move in the same way, these differences in hardness balanced out will.

Bekannt ist es bei Steuerungen der genannten Art, diesen Ausgleich durch veränderliches Übersetzungsverhältnis von Hebeln zu besorgen.It is known in controls of the type mentioned to compensate for this by means of a variable transmission ratio to get from levers.

Die Erfindung besteht darin, den Ausgleich durch Änderung der freien Federlänge, also bei Schraubenfedern durch die an sich bekannte Veränderung der freien Windungszahl, zu bewirken. Der Gegenstand der Erfindung ist in der Zeichnung in beispielsweiser Ausführung veranschaulicht. The invention consists in the compensation by changing the free spring length, so at To effect coil springs by changing the free number of turns, which is known per se. The object of the invention is illustrated in the drawing in an exemplary embodiment.

Es bezeichnet 1 den Fliehkraftregler mit Gegen-It denotes 1 the centrifugal governor with counter-

s5 feder 2 und Drehzahlverstellung 3 einer nicht dargestellten Dampfturbine, deren Regelventile auf den ganzen Umfang der Regelstufe verteilt sind und von zwei oder mehreren Steuerwellen aus betätigt werden. In dem Umlenkhebel 4 zum Drosselschieber 5 für das Steueröl ist eine Kulisse 6 zur Verstellung des Ungleichförmigkeitsgrades des Reglers 1 vorgesehen. Der von dem Drosselschieber 5 eingestellte Öldruck wirkt auf die Empfängerkolben 7 und 8 ein. Durch Verstellung der je mit Gegenfeder 9 bzw. 10 versehenen Kolben 7, 8 bewirken die Kraftverstärker 11,12 ihrerseits eine Verstellung der Schieber 13, 14 und damit eine Drehbewegung der auf der betreffenden Steuerwelle 15, 16 sitzenden Drehkolben 17, 18.s5 spring 2 and speed adjustment 3 of a not shown Steam turbine, the control valves of which are distributed over the entire scope of the control stage and operated by two or more control shafts. In the lever 4 to Throttle slide 5 for the control oil is a setting 6 for adjusting the degree of irregularity of the Controller 1 provided. The oil pressure set by the throttle slide 5 acts on the receiver piston 7 and 8 a. By adjusting the pistons 7, 8, each provided with a counter spring 9 or 10 the force amplifiers 11, 12 for their part cause a Adjustment of the slide 13, 14 and thus a rotary movement on the relevant control shaft 15, 16 seated rotary lobes 17, 18.

Der Gleichlauf der beiden Steuerwellen 15 und 16 wird dadurch erzielt, daß die Gegenfedern 9 und 10 mittels der Schraubenstücke 25 und 26 eingestellt werden.The synchronism of the two control shafts 15 and 16 is achieved in that the counter springs 9 and 10 are adjusted by means of the screw pieces 25 and 26 will.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Hydraulische Steuerung für Dampf- oder Gasturbinen mit mehreren Steuerwellen zur Betätigung der Düsengruppenventile, deren jede von einem Servomotor angetrieben wird, der einen Empfängerkolben und eine auf diesen wirkende Schraubenfeder aufweist, mit Einrichtung, etwaige Unterschiede in der Härte der Servomotorenfedern auszugleichen, damit die Servomotoren sich einander gleich bewegen, dadurch gekennzeichnet, daß jede Feder in an sich bekannter Weise in ein Gewinde ihres Federtellers mehr oder weniger weit eingeschraubt wird.Hydraulic control for steam or gas turbines with multiple control shafts for Actuation of the nozzle group valves, each of which is driven by a servo motor, the has a receiver piston and a helical spring acting on this, with device, to compensate for any differences in the hardness of the servomotor springs so that the servomotors move in the same way, characterized in that each spring in a known manner in a thread of their Spring plate is screwed in more or less far.
DEL14801A 1953-02-28 1953-02-28 Hydraulic control for steam or gas turbines with two or more servo motors Expired DE967497C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL14801A DE967497C (en) 1953-02-28 1953-02-28 Hydraulic control for steam or gas turbines with two or more servo motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL14801A DE967497C (en) 1953-02-28 1953-02-28 Hydraulic control for steam or gas turbines with two or more servo motors

Publications (1)

Publication Number Publication Date
DE967497C true DE967497C (en) 1957-11-14

Family

ID=7259929

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL14801A Expired DE967497C (en) 1953-02-28 1953-02-28 Hydraulic control for steam or gas turbines with two or more servo motors

Country Status (1)

Country Link
DE (1) DE967497C (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH92479A (en) * 1921-02-11 1922-03-16 Graemiger Benjamin Control device for centrifugal compressors and pumps.
AT134497B (en) * 1929-10-30 1933-08-10 Katharine Parsons Control device for power machines, in particular steam turbines.
US2224321A (en) * 1938-03-02 1940-12-10 Westinghouse Electric & Mfg Co Hydraulic governing apparatus
DE734897C (en) * 1938-03-02 1943-04-30 Siemens Ag Multi-purpose controller designed as a converter controller for steam or gas turbines
CH236279A (en) * 1943-08-11 1945-01-31 Ag Peravia Device for adjusting the effective spring length in torsion springs.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH92479A (en) * 1921-02-11 1922-03-16 Graemiger Benjamin Control device for centrifugal compressors and pumps.
AT134497B (en) * 1929-10-30 1933-08-10 Katharine Parsons Control device for power machines, in particular steam turbines.
US2224321A (en) * 1938-03-02 1940-12-10 Westinghouse Electric & Mfg Co Hydraulic governing apparatus
DE734897C (en) * 1938-03-02 1943-04-30 Siemens Ag Multi-purpose controller designed as a converter controller for steam or gas turbines
CH236279A (en) * 1943-08-11 1945-01-31 Ag Peravia Device for adjusting the effective spring length in torsion springs.

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